Small Scale Transonic Tunnel

The small scale transonic tunnel is a 1:12 scale version of the Transonic Wind Tunnel (TWT). This facility is used for low cost wind tunnel testing on small models in the early development stages of a new program. It is also used for the calibration of flow angularity meters and other flow survey probes to be used in the TWT.

Facility Capabilities

Mach number range from 0.3 to 1.2

Incidence range up to 20˚

Small strain gauge sting balances

Wall mounted half model balance

Pressure measurements using ESP modules

Provision for Schlieren windows in the test section side walls

Technical Information

The test section is 22.86 cm (9 in) wide by 20.32 cm (8 in) high with perforated walls of 20% open area.

The tunnel is powered by an ejector driven from the 10bar (145psi) high pressure air reservoir.